Home / 285,368.04-393,811.20-158,045.76

Finding the Fourth Proportional to 285,368.04, 393,811.20 and 158,045.76

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Solution

The fourth proportional to 285,368.04, 393,811.20 and 158,045.76 is: 218,104.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,368.04 : 393,811.20 = 158,045.76 : x
  2. Step 2: Convert to fraction form
    285,368.04/393,811.20 = 158,045.76/x
  3. Step 3: Cross multiply
    285,368.04x = 393,811.20 × 158,045.76
  4. Step 4: Simplify right side
    285,368.04x = 62,240,190,400.51
  5. Step 5: Solve for x
    x = 62,240,190,400.51/285,368.04
  6. Step 6: Final answer
    x = 218,104.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.